Hello.

How can I model a disassemblance?

Say, I have a product C and its BoM which consits of product A and B.
Sometimes I purchase product C and need to disassemble it to parts A and B so that A and B can be used in production of another product D. Is possible in TinyERP?

If I need to assemble C I can use a production order. But for reverse operation I actually need some sort of BoM with multiple outputs (C -> A, B). Or at least some special type of production order which use an existing BoM for product C in reverse.

Thanks in advance.

I'm not sure on this with TinyERP but... have you tried to do a negative production? It should decrease the amount of final product while increasing the components... just a thought.

Regards,
Pedro

Hi, Pedro.

For negative production - how can I define it? Some sort of inverse BoM with negative quantities of parts? But what to do with a negative quantity of an assembled product?

Maxim.

Hello,


A+B => C and C =>A+B
This function would be great.

I'm looking for a slightly more complex capability :
A+B => C+D

D is either a product, fall or waste.

Hi!

Yes, yes, yes!!!
I mean just that. IIRC it's called the Bill of Operation.

It would be great to have it.

Maxim.

Hello,
is there a way to disassemble Products, which is proved?

Greetings Udo

I would like to see BOO too!

Did you ever solve the disassemble operation??
Or Disassemble/Reverse BoM?

Receive the product. Go through Breakdown operations - receive the parts into inventory.

Just wondering . . .

There is a module mrp_subproduct, at least in v6:



I suppose this could fit your needs.

say: you buy C, its components are A and B

Now you want to produce D, therefore you need A and B

create a BoM for A, component C, subproduct B
create a BoM for B, component C, subproduct A

create a MO for A or B
products to consume = C
finished goods = A and B

afterwards you've got the raw material (components) to produce D

means: whenever you need A or B as raw material procurement creates a new MO with product to consume = C (to buy)

Thanks for the suggestion on mrp_subproduct. We looked at this and it doesn't quite fit the use case. It looks like we're going to work with a client to develop mrp_disassemble as a new module.

The use case example is:

Purchase a full bicycle - already assembled from an overseas supplier.
This is setup as a full bicycle in the system and the "Starting" product <-- That's the big difference in MRP today as you typically define the "End" product.

Go through a production operation and disassemble the full bicycle into known quantities of individual parts: 1 wheelset, L brake/shifter, r brake/shifter, bike seat, bike frame, etc.

It would be nice as well to extend the module for mrp_disassemble_dynamic to accommodate the example of cattle slaughterhouse which we've seen in other posts- dynamically determining the output based on a preset formula and allowing the user to edit the final output items based on a single input. A cow produces x,y,z - a really big cow produces 3x, 5y, 6z, etc

If anyone else wants to collaborate on this please let me know. We'd like to build up the use case on it so it is well thought out in the specification. It looks like there would be some additional interest in the community.

All the best,

Question, are you manufacturing or receiving a product you need to disassemble? If you need to disassemble the product when you receive it from the supplier, you can set its BOM to Phantom Type. When you receive the product in your warehouse, it will automatically unpack it,

Hope this helps,

The use case is that the disassemble operation requires an operation in manufacturing to breakdown. The products aren't disassembled by the warehouse receiving staff.

e.g. a complete bicycle is received from Taiwan.
It is received into the warehouse and put into an incoming goods area of the warehouse.

Dekitting is scheduled to breakdown the bicycle into separate sellable parts - and has a manufacturing operation to do so.

That is the use case the module supports.

Hope that helps.